Page last updated on: Friday, April 18, 2014 Share on twitterShare on facebookShare on emailShare on printMore Sharing Services4 Secret Nuclear Bunker on the air The Essex Secret Nuclear Bunker amateur radio station GB0SNB should be on the air this weekend from Saturday morning until Sunday afternoon GB0SNB is located in an RGHQ 5.1 Cold War Nuclear Bunker at Kelvedon Hatch, SatNav postcode CM15 0LA. The Bunker is located in the Borough of Brentwood, 32 km north-east of London and is a large underground bunker operated by the UK government from 1952 until 1993. It is hidden behind a small bungalow, tucked into some farm land along a small lane, which houses the main entrance to the bunker. It is planned to operate on the HF bands using a beam and dipole. GB0SNB – Kelvedon Hatch Secret Nuclear Bunker http://www.gb0snb.com/ Secret Nuclear Bunker http://www.secretnuclearbunker.com/